350 × 350
Source:https://www.amazon.com/COOFANDY-Fashion-Dress-Shirt-Casual/dp/B0188GTUXK
1440 × 1200
Source:https://bobbyjones.com/products/bj542121-signature-cotton-oxford-solid-button-down-shirt-1
350 × 270
Source:https://www.amazon.com/COOFANDY-Floral-Printed-Sleeve-Wedding/dp/B09V16Q97R
768 × 768
Source:https://www.walmart.com/ip/YYDGH-Men-s-Muscle-Dress-Shirts-Slim-Fit-Stretch-Long-Sleeve-Casual-Button-Down-Shirt-Army-Green-3XL/2860835097
400 × 400
Source:https://www.ebay.com/itm/275618251595
768 × 768
Source:https://www.walmart.com/ip/KSCYKKKD-Men-s-Button-Down-Dress-Shirt-Short-Sleeve-Casual-Beach-Tops-Lapel-Neck-Solid-Color-Blouse-Black-L/3532695478
350 × 233
Source:https://www.amazon.com/COOFANDY-Muscle-Shirts-Wrinkle-Free-Sleeve/dp/B07Z35SRGZ
4325 × 4325
Source:https://joeandbella.com/products/everyday-magnetic-button-down-for-men
488 × 488
Source:https://www.target.com/p/men-39-s-performance-dress-standard-fit-long-sleeve-button-down-shirt-goodfellow-38-co-8482-black-s/-/A-87294998
683 × 1024
Source:https://www.nytimes.com/wirecutter/reviews/best-mens-button-up-shirts/